**Q2: **

Use or to fill in the gap: If and , then .

- A
- B

**Q3: **

Given that , what is the value of ?

**Q5: **

Given that , what is the value of ?

**Q6: **

Given that , what is the value of ?

**Q7: **

What is ?

- A
- B
- C
- D
- E

**Q8: **

Use or to fill in the gap: If and , then .

- A
- B

**Q10: **

If and , what is ?

- A
- B
- C
- D

**Q11: **

If , , and , what is ?

- A
- B
- C
- D

**Q12: **

Find .

- A
- B
- C
- D

**Q13: **

What is ?

- A
- B
- C
- D
- E

**Q14: **

If , what is ?

- A
- B
- C
- D

**Q15: **

Given that , what is the value of ?

**Q16: **

Given that , what is the value of ?

**Q17: **

What is ?

- A
- B
- C
- D

**Q18: **

Find .

- A
- B
- C
- D

**Q19: **

Use or to fill in the gap: If and , then .

- A
- B

**Q20: **

Find the union set of and the set of digits in the number 46β786.

- A
- B
- C
- D
- E

**Q21: **

Given that and , find .

- A
- B
- C
- D

**Q22: **

Given that , what is the value of ?

**Q23: **

Given that , what is the value of ?

- A81
- B
- C18
- D or

**Q24: **

Find .

- A
- B
- C
- D

**Q25: **

Find .

- A
- B
- C
- D